The BF423, BF-423, 423 is a High Voltage PNP Bipolar Transistor is designed for general purpose amplifier applications. This device is housed in the TO-92 package.
The TO-247AC package is preferred for commercial-industrial applications where higher power levels preclude the use of TO-220AB devices. The TO-247AC is similar but superior to the earlier TO-218 package because its isolated mounting hole. It also provide
The 2SK3550, 2SK-3550, K3550, 3550 is a 900V 10A 300W TO-3PF Package of new generation of high voltage MOSFET. This is utilizing an advanced charge balance mechanism for outstanding low on-resistance and lower gate charge performance.